Firefox extensions expand the functionality of the browser with new features not available in the default program. Below are the best Firefox add-ons (aka extensions) that cover security and privacy, ...

An expired certificate on the Mozilla Add-ons infrastructure is disabling Firefox add-ons for millions of users, and is also preventing users from re-activating or (re-)installing extensions. The ...

At 12:00 a.m. UTC (Coordinated Universal Time, formerly Greenwich Mean Time) today, many Firefox users found themselves browsing with their usual extensions. But as clock ran over to midnight, a code ...

A malicious campaign dubbed 'GreedyBear' has snuck onto the Mozilla add-ons store, targeting Firefox users with 150 malicious extensions and stealing an estimated $1,000,000 from unsuspecting victims.

Jake Peterson is Lifehacker’s Tech Editor, and has been covering tech news and how-tos for nearly a decade. His team covers all things technology, including AI, smartphones, computers, game consoles, ...

Used by an estimated 360 million worldwide internet users, Mozilla Firefox is the fourth most popular web browser on the planet. It's also thought to be one of the more secure options available, ...

A Sunday afternoon browser update fixed the lapsed certificate, which Mozilla had used to digitally sign Firefox extensions. After the certificate expired, the browser add-ons stopped working. Mozilla ...

Jay primarily writes news and deals posts for Android Police. Before joining AP, he spent the past several years yammering on about the crazy world of Android for various tech outlets. Besides ...

For the sliver of the market that opts for Firefox instead of Chrome, the default browser on Android devices, the experience just got better. Firefox maker Mozilla announced today the launch of over ...